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US Patent: 2,316,777
Machinist's precision level
Patentee:
William B. Fell - Rockford, IL

USPTO Classifications:
33/385, 33/390

Tool Categories:
layout tools : levels : spirit levels

Assignees:
None

Manufacturer:
William B. Fell Co. - Rockford, IL

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 01, 1940
Granted: Apr. 20, 1943

Patent Pictures:
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